extern "C" void
platform_switch_to_logo(void)
{
// in debug mode, we'll never show the logo
if ((platform_boot_options() & BOOT_OPTION_DEBUG_OUTPUT) != 0)
return;
status_t err;
if (gFramebuffer != NULL) {
err = gFramebuffer->SetDefaultMode();
if (err < B_OK) {
ERROR("Framebuffer SetDefaultMode failed!\n");
return;
}
err = video_display_splash(gFramebuffer->Base());
}
}
extern "C" void
dprintf(const char* format, ...)
{
char buffer[512];
va_list list;
int length;
va_start(list, format);
length = vsnprintf(buffer, sizeof(buffer), format, list);
va_end(list);
if (length >= (int)sizeof(buffer))
length = sizeof(buffer) - 1;
serial_puts(buffer, length);
if (platform_boot_options() & BOOT_OPTION_DEBUG_OUTPUT)
fprintf(stderr, "%s", buffer);
}
extern "C" int
main(stage2_args *args)
{
TRACE(("boot(): enter\n"));
if (heap_init(args) < B_OK)
panic("Could not initialize heap!\n");
TRACE(("boot(): heap initialized...\n"));
// set debug syslog default
#if KDEBUG_ENABLE_DEBUG_SYSLOG
gKernelArgs.keep_debug_output_buffer = true;
#endif
add_stage2_driver_settings(args);
platform_init_video();
// the main platform dependent initialisation
// has already taken place at this point.
if (vfs_init(args) < B_OK)
panic("Could not initialize VFS!\n");
dprintf("Welcome to the Haiku boot loader!\n");
bool mountedAllVolumes = false;
Directory *volume = get_boot_file_system(args);
if (volume == NULL || (platform_boot_options() & BOOT_OPTION_MENU) != 0) {
if (volume == NULL)
puts("\tno boot path found, scan for all partitions...\n");
if (mount_file_systems(args) < B_OK) {
// That's unfortunate, but we still give the user the possibility
// to insert a CD-ROM or just rescan the available devices
puts("Could not locate any supported boot devices!\n");
}
// ToDo: check if there is only one bootable volume!
mountedAllVolumes = true;
if (user_menu(&volume) < B_OK) {
// user requested to quit the loader
goto out;
}
}
if (volume != NULL) {
// we got a volume to boot from!
status_t status;
while ((status = load_kernel(args, volume)) < B_OK) {
// loading the kernel failed, so let the user choose another
// volume to boot from until it works
volume = NULL;
if (!mountedAllVolumes) {
// mount all other file systems, if not already happened
if (mount_file_systems(args) < B_OK)
panic("Could not locate any supported boot devices!\n");
mountedAllVolumes = true;
}
if (user_menu(&volume) < B_OK || volume == NULL) {
// user requested to quit the loader
goto out;
}
}
// if everything is okay, continue booting; the kernel
// is already loaded at this point and we definitely
// know our boot volume, too
if (status == B_OK) {
register_boot_file_system(volume);
if ((platform_boot_options() & BOOT_OPTION_DEBUG_OUTPUT) == 0)
platform_switch_to_logo();
load_modules(args, volume);
load_driver_settings(args, volume);
// apply boot settings
apply_boot_settings();
// set up kernel args version info
gKernelArgs.kernel_args_size = sizeof(kernel_args);
gKernelArgs.version = CURRENT_KERNEL_ARGS_VERSION;
// clone the boot_volume KMessage into kernel accessible memory
// note, that we need to 4 byte align the buffer and thus allocate
// 3 more bytes
void* buffer = kernel_args_malloc(gBootVolume.ContentSize() + 3);
if (!buffer) {
panic("Could not allocate memory for the boot volume kernel "
"arguments");
}
buffer = (void*)(((addr_t)buffer + 3) & ~(addr_t)0x3);
memcpy(buffer, gBootVolume.Buffer(), gBootVolume.ContentSize());
gKernelArgs.boot_volume = buffer;
gKernelArgs.boot_volume_size = gBootVolume.ContentSize();
// ToDo: cleanup, heap_release() etc.
platform_start_kernel();
}
}
out:
heap_release(args);
return 0;
}
